authentication code

I have had eclient for several years.  I bought a new computer and reinstalled em client .  after 30 days I stopped getting emails.  I tried to confirm my license, but to do so  requires the authentication code, which I don’t have.  em client says it will send the authentication code to me in an email, but I can’t get the email because em client is shut down.  How do I get the authentication code now?

You should have a webmail login to access your email via a browser which can be accessed anywhere around the world if needed. Eg If you have an IMAP mailbox acct like Gmail you can access that at or Hotmail acct at etc If you have a POP acct most isp’s have webmail logins like eg etc Your ISP website will have the url to login.